Reuss or may refer to:
- Reuss (surname)
- Reuss (river) in Switzerland
- Imperial County of Reuss or Reuß, several former states (counties and principalities) in present-day Germany ruled by the House of Reuss, and the short-lived People's State of Reuss of 1919/1920
- Principality of Reuss-Greiz and Principality of Reuss-Gera
- House of Reuss, members include:
- Countess Augusta Reuss of Ebersdorf (1757-1831)
- Eleonore Reuss of Köstritz (1860-1917)
- Heinrich Reuss (disambiguation), multiple persons
- Hermine Reuss of Greiz (1887-1947)
- Princess Victoria Feodora Reuss
See also
- Reus (disambiguation)